Forum Discussion
JoeBlogs1759_10
Nimbostratus
NimbostratusDisplay number of current connections for a pool
Hello, I currently have an iRule to display the status of the members of a pool used by a third-party who I can give access to the box. This works fine but I wrote so long ago I can't remember most of it.
What I need now is to display the number of connections for each pool member either within the same iRule or individual iRules for each member.
To use this iRule I simply create a VIP and attach this without any pools.
browse to http://[ip]/F5-status
when HTTP_REQUEST {
set response "
BIGIP Pool Status for FP Prod/Stby - [clock format [clock seconds]]</div>
<div>
<span class="Apple-tab-span" style="white-space:pre">
</span>
"
if {[HTTP::uri] eq "/F5-status" } {
foreach { selectedpool } [LB::server pool] {
pool [LB::server pool]
if { [active_members [LB::server pool] ] < 1 } {
append response "$response DOWN - $selectedpool
"
} else {
append response "$response UP - $selectedpool
"
}
append response "Number of members=[active_members [LB::server pool] ]
"
}
HTTP::header replace Cache-Control "no-cache, must-revalidate"
HTTP::respond 200 content $response "Content-Type" "text/html"
}
}
nitassEmployee
in 10.x, i understand we have to count it manually something like what kevin does in the discussion topic below.
i guess the feature in 11.x which Jason mentioned is istats. anyway, i do not see much information so far. hope Jason or someone else can suggest here. :-)
Connection Statistics
https://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/50/aft/1182583/showtab/groupforums/Default.aspx
JoeBlogs1759_10Forgot to mention what I'm running...BIG-IP 9.4.8 Build 407.0 Hotfix HF4
hooleylistCirrostratus
In 9.4.x the only option I can think of for this is to write a shell script that calls bigpipe and writes the current connection counts to a data group every X seconds. You could then read the data group from the iRule.
In 10.1+ you could track the connection count in a subtable using the table command. In a future version, it should be possible to access the connection stats from an iRule more directly.
Aaron- JoeBlogs1759_10
Thanks Aaron and others.
Aaron I assume you are saying:
Create a cron job to call a script which runs a bigpipe command to query the members of X pool and writes the output to a file.
I can then use a VIP and iRule to display this file to the users.
I don't want a hand-out, unless you are willing toooo. But do you have a sample script and relevant iRule I can hack to achieve this and what's the bigpipe command I need to call?
Thanks...